frankie wrote:
The colour checker passport software will recognise the chart and do its stuff.

And - you should NOT color correct/change the image before you send it to the software to create the profile.

You want it to see exactly what your camera does to the image, not the effects of post processing in Lightroom.

Good luck! Let us know what you think.

I profiled my camera in 2006 when I was doing a fashion shoot and hard trouble "nailing" some orange plaid pants. Definitely a great tool to help get you to a known, neutral starting point on any camera.